Lock



Jan. 2o, 1931. A. B. Russ ET 'AL 1,789,775

LOCK

Filed may s. 1929 2 sum-sheet 2 lll l Gttomeg Patented Jan. 2t), 1931nam n. nnss, or NEW ORLEANS, LOUISIANA-,AND Roy w. Hermagor 131mm,

` srssnerr PATENT@ OFFICE Mrs-l Loca:

application laca nay's, 1929. serial No. 361,530.'

This invention relates to locks and latches for automobile doors, andespecially to that type in which the device can be used as a latchfreely operableby a handle or whichcan be ,-yused as a lock requiring akey for its operation.

The objects of the invention are:

First, to provide a latch offering substantially no resistance to thelatching of the Adoor in closing thus avoiding jarring the doorv arts.P- Second, to produce a tight anti-rattling holding of the door inlatched position.

Third, to provide a dogging means effective within an appreciable angleof swing of the latch bolt.

Fourth, to rovide alatcll requiring a Very shallow mortlse in the edgeof the door.

Fifth, to provide such a latch having means for clogging the outsideoperating means by manually operated means from -within the door, said-dogging means being 'operable from without the door by means of a key.lSixth, such other advantages as will appear from the construction andrelation of the several parts comprising the cooperating elements of thelatch and lock, as set forth by the following detailed description:

The inventionconsists of structural characteristics and relativearrangement of ele'- ments which will be hereinafter more fullydescribed and particularly pointed out in the appended claims.

In the drawings, in which similar reference characters indicate similarparts in the sev`- eral figures: A I

Figurev 1 is an elevation of an automobile door with our lock inposition thereon Figure 2 is a perspective view of a. door with the lockin place, as viewed from' the inner side and edge of the door;`

Figure 3 is a sectional view taken on lille 4III-III of Figure 1;

Figure 4 is an edge view of the lock in elevation with the face or` endplate removed;

Figure 5 is a vertical sectional View on a line taken just 4within theouter side plate shown in Figure 4;I Figure 6 is a horizontalsectionalwview taken on line `VI--fVI of Figure 5, looking in thedirection of the arrows;

' Figure 7 is a horizontal'sectional View of the device showing the doorpartly open with 13 'of plate 12 formingthe'to plate of the casing andat its lowerend y the hollow post 16 through which one of the screwbolts extends.

The casing is mounted ina chamfer or mortise in the edge-of the door soas to lie flush with the inner surface of the door 10 and with its. edgeas shown in Figures 2 and 3..

The lock casing being open at its edges, excepting the top edge, aseparate covering plate 18 is fastened to the door to cover the open endof the lock. The lock casing has a plate 19 rigid therewith forfastening the lock casing tothe door by means of screws or other wellknown fastening means.

Between the top plate 13 and partition plate 14v is journalled the latchbolt 17mounted for swingino movement by means of a shaft 20 rigid withbolt 17. Shaft 20 has its lower end projecting through partition plate.

14 and split as at 21 to tightly receive the end of a torsion spring 22,`the other end of which is fastened as at 23to the casing wall. l

`Spring 22 normally swings bolt 17 into ythe door releasing or retractedposition shown 1n Flgure 7.

.The swinging bolts 17 formed with twol -teeth or projections 24` 25,tooth 25 continuously projecting from the lock casing lnto the t path ofa keeper lug 26, tooth 24 projet-.table into the path of said lug onthey closing of the door so as toconfine the keeper lug 26 between teeth25 and 24, as shown in Figure '3. The side of bolt 17 adjacent tooth 24is arc shaped at 27 with the axis of shaft 20 as a center, While theside adjacent tooth 25 is shaped as an arc at 28 so as to allow aswinging of the bolt about 20 as a center without contacting with thesides of the lock casing.

partition pla-te 14 and is normally swun to At 29 the bolt is formedwith a straight side joining the are `sha d sides27, 28,l as shown inFigure 3, an so arranged as to form an acute angle with the path oftravel of a latch clogging or locking means 30 when bolt 17 has beenswung into ther door looking position shown in said figure.

. Lever 30 extends through a slot 31 in the contact with the peripheryof bolt 17 by a eaf spring 32 having one end inserted into a kerf inlever 3() and the other end contacting the end of slot 31, as shown.Lever 30 is pivoted on screw bolt 15 within post 16, said post being`slotted throughpart of its circumference as at 33 to allow swinging oflever 30 vthrough its arc of movement. 4

34 designates a squared handle spindle extending through the lock casinghaving an outer handle 35 and an inner handle 36 nonrotatably connectedvthereto and journalled for rotation in apertures in casing Walls 11,12.

Clamped to spindle 34 by set screws 39, 40 for rotation therewith aretwo arms 37, 38,

said arms being normally held in contact with anv abutment in the formof one of the clam ing screw bolts 15, shown in Figures 4 an 5, by .acoil spring 41 fastened at one end about the neck of set screw 40, theother end Contactin the fixed screw bolt 415.

Arm38 swings in the pathof movement of leveri30 and on rotationOeitherhandle is capable of moving lever 30 against'the pressure ofspring 32 so as to move said lever out of contact with the periphery ofbolt 17.

A sleeve 42 is clamped ybetween plates 11,

12 of the casing and has reduced ends 43,44,

extending through said wall' tolsecure it against lateral displacement.Within sleeve 42 there are rotatably disposed Itwo .cylindrlcal lugs45,46, pluo 45 having a thumb piece 4 connected wit 1 its projectingend,

and plug 46 having its outer end slotted as at 48 for the' reception ofa key. Plugs'45 and 46 are independentlv rotatable and are preventedfrom longitudinal movement by parts 49, 50 rigidly attached to therespective plngs,'as shown in Figure 6, but allowing limited rotarylmovement in slots 51, 5 2 in 'lhe part or (logging arm 49 swingsy inthe path of movement ofarln37'on handle spindle 34, its 'end beingformed spatulate so 'as to be capable of securely seating in a.

notch 59 provided in, the end of arm 37' wl1en said arm is in its normalor inoperative posion in contact with screw bolt 15, las shown in Figure5. *l designates a spring beingr bowed near its free end so as tofrictionally hold arm 49 in inoperative position. The other end ofspring 53- is fastened rigidlyto casing wall 11,.as shown in Figures4and5.

leaf spring over which the'. spatula-te part of (logging arm 49 wipessaid thumb turn 47 from the insi the outside of the door. Such turningmove- Y `The slot in plug 46 extends I' entirely through said plug andis continued linto ther adjacent end of as 54, inserted mately enter theslot in lu 45 so as to turn both plugs together an t erefore, operate plug 45 so that a key, such t doggmg arm 49 tooperative orinoperativeposition..

' As shown in Figure 2, the stop strip 55 of the door may be chaniferedat 56 to pro-l vide Vroom for tooth 25 to swing to locking position onclosing .the door, thus allowing a thinner construction of door.

The keeper lug 26 may be provided by bending a strip of .metal uponitself, thus providing at the same-time attaching ears 56,

I 56, as shown in ,Figure 8.

An escutcheon or rose plate 57 may be provided to act as a bearing forthe handle 35- and spindle 34, the escutcheon being attached rough plug46- will ultielif,

lever 30 against the tension ofsprng 32 and out of the path ofmovementofbolt 17, thus` releasing said bolt lfor swinging :movement on its pivot20. Bolt spring 22 will tend. to turn bolt 417 sofas to lswing tooth 24back-into the lock'casing and project tooth `25f1against the keeper lugso astoyopen 'thedoon slight pull -'on' handle 35 or pressure onhan;dle36 causing the door tofope'n, j

' When handle 35 or 3.6,'isre easedzlateh dog-fging lever 30 willbethrown in contactfwithg originalinoperative positionag'ainst stop15f`A Tolatch the door, a simple' pushingor pull: ing of the door to closedpositionis sufficient, Latch bolt 17 being he d byspring keeper lugPosition with 24k retracted and tooth 25 'p'roectcd, is tunedfonj toembrace lug 'es betjvyennie 241,25.'

The angle formedby t e'str'aight edge of,-

bolt 17witli the pathof movement .of dogging lever 30 is of ysuchacliteness that turn-4 ing force exerted on tooth: 24 will not movelever 30 out of bolt-dogging position, i.

The spindle 34..,and, hence, the'operatingl' handles 35 and 36 can bedtgged byftulmllg features herein disclosed and as embodied in the scopeof the claims.

What we claim is: v- 1. Ina combined lock and latch, a pivoted latchbolt, 'spring means for normally moving and holding said bolt ininoperative position, keeper means for moving said bolt to operativeposition on closing they door, a

springpressed means-for automatically'do'gging saidbolt when moved tooperative position, arotary handle spindle extending through'the closureand -having a handle rigidly attached at each end andv an arm rigidlymounted on said spindle and moving in the path of'said dogging lever tomove said lever out of bolt dogging position;

2. Ina combinedlock and latch, a pivoted latch bolt, spring means' fornormally moving and holding said bolt in inoperative position, keepermeans for moving said bolt to operative position on closing thedoor, a

. spring pressed lever for automatically dogging said boltfwhen moved tooperative position, a rotary handle spindle extending through the.closure and having afhandle rigidly attached. at each end and an armrigidly mounted on said spindle and moving in the path of said dogginglever to move said lever out of bolt dogging position.

3.' In a combined lock and latch for closures, a lock casing, a pivotedlatch bolt mounted in said casing, spring means for normally moving saidbolt to inoperative position, keeper means for moving said bolt tooperative or latching position by the closing movementA of the closure,a spring pressed dogging lever for automatically clogging said bolt whensaid bolt has been moved to operative position, a rotary knob spindleljournalled in said casing for moving said dogging lever to boltreleasing position, and key operated means in said casing for lockingsaid knob spindle against movement.

4. In a combinedlock and latch for closures, a lock casing, a pivotedlatch boltinounted in said casing, spring means for normally moving saidbolt to inoperative po- I sition, means for moving said bolt tooperative position by the closing movement of the closure, a springpressed lever for automatically dogging said bolt in its operativeposition, knob spindle means for moving said lever to inoperativeposition, a dogging means for said knob spindle journalled in saidcasing, and means for manually operating said dogging means from insidethe closure and by key from the outside.

5. In a device as described,the combination of al casing comprising sideplates, an end or face plate, and a top plate, a partitionv plate inproximity tothe top plate for dividing the casing into twochambers-,means to clamp the platestogether with the side .plates inspaced parallel -relation to `each other, and

a swinging bolt journalled in one -Xchamber between the top plate andpartition plate, and operating means for said bolt journalled inthefother chamber between said side plates.

6. In a device as described, lthe 'combination of a latch housing havingtwo chambers separatedl by a slotted partition plate, and a latch boltmounted for swinging movement in v one. of said chambers, a spring fornormally swinging said bolt to inoperative position, means on-said boltfor swinging said bolt to operative position by the closing movement ofthe closure on which it is mounted, a dogging lever pivoted in the otherof. said chambers for automatically dogging said bolt in opera-` tiveposition and extending through said slot in the partition plate into thepath of movement of said bolt, and manually operable means journalled insaid second mentioned chamber. for releasing said bolt dogging means.

sures, a pivoted latch bolt having an inclined surface, means for movingsaid bolt .to inoperative po. ition on opening movement of the closure,operating means on the keeper and bolt for {noving the bolt to operativeposition by the c osing movement of the closure, and means moving in aplane at right angles to that .of the bolt movement and having thecombined function for dogging said bolt from .movement when moved to itsoperative -position and cooperating with said inclined surface forcamming said bolt against the keeper land prevent rattling.

' 8. In a combined lock and latch for closures, a pivoted latch bolthaving an inclined surface, spring means for moving said bolt toinoperative position on opening said closure, cooperating means on thekeeper and bolt for moving the bolt to operative posi-l tion by theclosing movement ofthe closure, and a sprmg pressed means moving in aplane at right angles totliat of the bolt movement and having thecombined function for dog- 'ging said bolt from movement when in its 7;Ina combined lock and latch 'forclooperative position and cooperatingwith said inclined surface for camming said bolt against thekeeper andprevent rattling. 9. In a combined lock and latch for closures, apivoted latch bolt having an inclined erative posit-ion on openingmovement of the closure, cooperating means on theA keeper and bolt formoving the bolt to operative posisurface, 'means for moving said bolt toinoption by`the closing movement of the' closure,A

and means moving in a plane at rig'ht angles tothat of the bolt movementand having the combined function for automatically dogging said boltfrom movement when moved to itsoperative position and cooperating withsaid j inclined surface for camming said bolt against the keeper andprevent rattling.

. 10. In a combined lock and latch for clo- 10 sures, a pivoted latchbolt having an inclined l surface,- spring means for movlng said bolt toinoperative position on opening said clo sure, cooperating means onthekeeper and bolt for moving the bolt to operative position i 15 .by theclosing movement of the closure," and a spring pressed lever movin in aplaneA at right angles to that of the olt movement and having thecombined function for dog-- ging said bolt vfrom movement; when. .in itsL operative position and cooperating with said inclined surface forcamming said bolt againstthe keeper and prevent rattling. In testimonywhereof v ve hereunto aflxour signatures.

A ABR-AM B. RUSS.

ROY W. 'HEELEIL

